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首页> 外文会议>2017 Conference on Lasers and Electro-Optics Europe amp; European Quantum Electronics Conference >Phase sensitivity of mode-locking with optical feedback
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Phase sensitivity of mode-locking with optical feedback

机译：具有光反馈的锁模相位灵敏度

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摘要

Pulsed light sources are of interest for a range of applications, as well as from a dynamical systems perspective. For applications, such as optical data communication, it is important that the pulse trains that are produced are highly regular. This is a hurdle when using passively mode-locked semiconductor lasers, because pulse trains from these devices tend to have a considerable timing jitter. This is due to the relatively high level of spontaneous emission noise and the absence of an external reference clock. However, it has been shown that, under certain conditions, optical self-feedback may be used to reduce timing jitter and thus improve the temporal stability of the resulting pulse train [1]. For single-mode lasers subject to optical feedback it is known that the phase difference accumulated in the feedback loop crucially influences the dynamics of the laser. Here we investigate the influence of the feedback phase on the dynamics of a passively mode-locked semiconductor laser, with the aim of identifying feedback regimes resulting in improved temporal stability.
机译：脉冲光源对于一系列应用以及从动态系统的角度而言都是令人感兴趣的。对于诸如光学数据通信的应用，重要的是产生的脉冲序列必须高度规则。当使用无源锁模半导体激光器时，这是一个障碍，因为来自这些设备的脉冲序列往往具有相当大的时序抖动。这是由于相对较高的自发发射噪声水平和缺少外部参考时钟。然而，已经表明，在某些条件下，可以使用光学自反馈来减少时序抖动，从而提高所得脉冲序列的时间稳定性[1]。对于经受光反馈的单模激光器，众所周知，反馈环路中累积的相位差会严重影响激光器的动态性能。在这里，我们研究了反馈相位对被动锁模半导体激光器动力学的影响，目的是确定导致改善的时间稳定性的反馈机制。

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